准分子
堆积
单体
分子间力
荧光
材料科学
超分子化学
分子内力
光化学
光电子学
化学
结晶学
聚合物
晶体结构
分子
光学
立体化学
物理
复合材料
有机化学
作者
Zhe Zhang,Qixia Bai,Zirui Zhai,Qingwu Long,Ermeng Han,He Zhao,Chuang‐Wei Zhou,Haobo Lin,Wei Zhang,Guo‐Hong Ning,Ting‐Zheng Xie,Pingshan Wang,Tun Wu
标识
DOI:10.1038/s41467-024-51792-x
摘要
Effectively regulating monomer and excimer emission in a singular supramolecular luminous platform is challenging due to high difficulty of precise control over its aggregation and dispersion behavior when subjected to external stimuli. Here, we show a metallo-cage (MTH) featuring a triple helical motif that displays a unique dual emission. It arises from both intramolecular monomer and intermolecular excimer, respectively. The distorted molecular conformation and the staggered stacking mode of MTH excimer are verified through single crystal X-ray diffraction analysis. These structural features facilitate the switch between monomer and excimer emission, which are induced by changes in concentration and temperature. Significantly, adjusting the equilibrium between these two states in MTH enables the production of vibrant white light emission in both solution and solid state. Moreover, when combined with a PMMA (polymethyl methacrylate) substrate, the resulting thin films can serve as straightforward fluorescence thermometer and thermally activated information encryption materials. Effectively regulating monomer and excimer emission in a singular supramolecular luminous platform is challenging due to high difficulty of precise control over its aggregation and dispersion behavior when subjected to external stimuli. Here, the authors report a metallo-cage featuring a triple helical motif that displays a unique dual emission.
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